Here 90 percent of scammers, it is a pity that the forum is easy to get.
Try to search for suppliers on the websites of wholesalers, where there is a complex registration procedure with verification of documents.
Not advertising
tradekey.com - a lot of useful things, mostly Asian suppliers, I bought Windows and protein there a couple of times. But there is a drawback, it is registration and constant pop-ups.
ec21.com - no pop-ups, very convenient, there are not many products, most suppliers leave contacts in pictures, so it is not necessary to register.
ktnet.com - the site is in Chinese, but you can understand it, it is also convenient, especially if you know Chinese.
I wish you good luck